69381379 has 4 divisors (see below), whose sum is σ = 71619520. Its totient is φ = 67143240.

The previous prime is 69381373. The next prime is 69381391. The reversal of 69381379 is 97318396.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69381379 - 2³ = 69381371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69381371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119024 + ... + 1119085.

It is an arithmetic number, because the mean of its divisors is an integer number (17904880).

Almost surely, 2^69381379 is an apocalyptic number.

69381379 is a deficient number, since it is larger than the sum of its proper divisors (2238141).

69381379 is a wasteful number, since it uses less digits than its factorization.

69381379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238140.

The product of its digits is 244944, while the sum is 46.

The square root of 69381379 is about 8329.5485471903. The cubic root of 69381379 is about 410.9108818287.

The spelling of 69381379 in words is "sixty-nine million, three hundred eighty-one thousand, three hundred seventy-nine".